<form action="<?php echo $this->baseUrl?>/index/step-requirements">
    <fieldset>
        <textarea rows="25" cols="90"><?php echo $this->escape($this->license); ?></textarea><br />
        <div class="button-set">
            <?php echo $this->button($this->t('Accept and Continue'), array(
                'type' => 'submit'
            )) ?>
        </div>
    </fieldset>
</form>
